Hanging basket structure for bridge construction under complex conditions

Abstract

The utility model discloses a hanging basket structure for bridge construction under complex conditions. The hanging basket structure comprises a main truss, a main truss walking mechanism and an auxiliary beam walking mechanism. The main truss comprises cross beams, the cross beams comprise a main cross beam and auxiliary cross beams arranged at the two ends of the main cross beam, and the main cross beam and the auxiliary cross beams are detachably connected; the main truss walking mechanism is arranged at the bottom of the main truss and can drive the main truss to walk; the auxiliary cross beam walking mechanism is located below the auxiliary cross beam, and the auxiliary cross beam walking mechanism can support the auxiliary cross beam separated from the main cross beam and drive the auxiliary cross beam separated from the main cross beam to walk; after the main cross beam and the auxiliary cross beam are separated, the main cross beam can be driven by the main truss walking mechanism to pass through the space between the stay cables on the two sides of the cable-stayed bridge, and the auxiliary cross beam can be driven by the auxiliary cross beam walking mechanism to pass through the outer sides of the stay cables on the two sides of the cable-stayed bridge. And the hanging basket can be smoothly disassembled.

Description

Technical Field

[0001] The utility model relates to the field of bridge construction auxiliary equipment, in particular to a hanging basket structure for bridge construction under complex conditions. Background Art

[0002] The hanging basket, as a key equipment for the segmented construction of prestressed concrete continuous beams, T-shaped steel structures and cantilever beams, is usually dismantled after the bridge is closed. For a cable-stayed bridge across a highway, after the middle of the bridge is closed, it is difficult to close the highway below the bridge, and the construction team cannot directly set up lifting equipment on the highway to dismantle the hanging basket device. Therefore, the hanging basket needs to be retreated to both ends of the bridge for dismantling. However, since the crossbeam of the hanging basket is too long, it will inevitably be blocked by the bridge's inclined cables during the process of retreating to both ends of the bridge. How to ensure the smooth dismantling process of the hanging basket while avoiding damage to the hanging basket has become an urgent problem to be solved. Summary of the invention

[0003] The utility model provides a hanging basket structure for bridge construction under complex conditions, so as to ensure smooth disassembly of the hanging basket without causing damage to the hanging basket.

[0004] In order to achieve the above purpose, the technical solution of the utility model is:

[0005] A hanging basket structure for bridge construction under complex conditions, comprising: a main truss, a main truss traveling mechanism and a secondary crossbeam traveling mechanism;

[0006] The main truss includes a crossbeam, and the crossbeam includes a main crossbeam and secondary crossbeams arranged at both ends of the main crossbeam, and the main crossbeam and the secondary crossbeam are detachably connected;

[0007] The main truss walking mechanism is arranged at the bottom of the main truss, and the main truss walking mechanism can drive the main truss to walk;

[0008] The secondary crossbeam walking mechanism is located below the secondary crossbeam, and the secondary crossbeam walking mechanism can support the secondary crossbeam separated from the main crossbeam, and drive the secondary crossbeam separated from the main crossbeam to walk;

[0009] After the main crossbeam is separated from the secondary crossbeam, the main crossbeam can pass between the inclined cables on both sides of the cable-stayed bridge driven by the main truss traveling mechanism, and the secondary crossbeam can pass outside the inclined cables on both sides of the cable-stayed bridge driven by the secondary crossbeam traveling mechanism.

[0010] Furthermore, the auxiliary crossbeam walking mechanism includes a track pad beam, an auxiliary rail, a wheel frame, a jacking device, a push rod and a mechanical gripper;

[0011] The track pad beam is arranged on the bridge deck of the cable-stayed bridge, the auxiliary rail is arranged on the track pad beam, the wheel frame is equipped with wheels, the pushing device is installed on the auxiliary rail, the pushing device can push the wheel frame to make the wheel slide along the auxiliary rail, one end of the push rod is fixed to the top of the wheel frame, and the other end of the push rod is fixedly connected to a mechanical gripper, and the mechanical gripper can clamp the auxiliary crossbeam.

[0012] Furthermore, the auxiliary crossbeam walking mechanism also includes a limiting push rod, which is obliquely arranged on the top of the wheel frame. After the piston rod of the limiting push rod is extended, it can abut against the clamping claw of the mechanical gripper to prevent the mechanical gripper from releasing the auxiliary crossbeam.

[0013] Furthermore, it also includes a crossbeam limiting bolt, the end of the secondary crossbeam is provided with a plurality of protrusions, the end of the main crossbeam is provided with a plurality of grooves corresponding to the protrusions, bolt holes are provided on both sides of the grooves and on the protrusions, when the protrusions are inserted into the grooves, the crossbeam limiting bolts can pass through the bolt holes on both sides of the grooves and on the protrusions, preventing the secondary crossbeam and the main crossbeam from separating.

[0014] Furthermore, it also includes a hanging basket template, which is connected to the secondary crossbeam via a suspension structure.

[0015] Furthermore, it also includes a bottom walking channel, which is arranged at the bottom of the hanging basket template. The bottom walking channel is a three-sided surrounding structure, and the three-sided surrounding structure is open to a side away from the closing position of the cable-stayed bridge.

[0016] Furthermore, the suspension structure includes a steel sling, one end of which is fixed to the hanging basket template, and the other end of which is fixed to the secondary crossbeam.

[0017] Beneficial effects:

[0018] The utility model provides a hanging basket structure for bridge construction under complex conditions. The crossbeam is divided into a main crossbeam and a secondary crossbeam that can be detachably connected, so that the two can be separated. At the same time, a main truss walking mechanism and a secondary crossbeam walking mechanism are provided, so that the separated main crossbeam and secondary crossbeam can be respectively retreated, so that the inclined cable can pass through the separation point of the main crossbeam and the secondary crossbeam, and the crossbeam is no longer blocked, so that the hanging basket can be smoothly retreated to the two ends of the bridge for disassembly, and the retreat operation can be completed without destroying the hanging basket structure, so that the hanging basket can be repeatedly used. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a cross-sectional schematic diagram of a hanging basket structure for bridge construction under complex conditions disclosed by the utility model without a bottom walking passage;

[0021] Figure 2 It is a top view schematic diagram of a hanging basket structure for bridge construction under complex conditions disclosed by the utility model without a bottom walking passage;

[0022] Figure 3 It is a cross-sectional schematic diagram of a hanging basket structure for bridge construction under complex conditions disclosed by the utility model;

[0023] Figure 4 It is a side view schematic diagram of a hanging basket structure for bridge construction under complex conditions disclosed by the utility model;

[0024] Figure 5 It is a schematic diagram of the connection between the main beam and the secondary beam of a hanging basket structure for bridge construction under complex conditions disclosed by the utility model;

[0025] Figure 6 A schematic diagram of a secondary crossbeam walking mechanism of a hanging basket structure for bridge construction under complex conditions disclosed in the utility model Figure 1 ;

[0026] Figure 7 A schematic diagram of a secondary crossbeam walking mechanism of a hanging basket structure for bridge construction under complex conditions disclosed in the utility model Figure 2 ;

[0027] Figure 8 It is a schematic diagram of a hanging basket structure moving forward on a cable-stayed bridge for bridge construction under complex conditions disclosed by the utility model;

[0028] Fig. 9 It is a schematic diagram of a hanging basket structure for bridge construction under complex conditions being closed on a cable-stayed bridge disclosed in the utility model;

[0029] Fig.10 The utility model discloses a schematic diagram of a hanging basket structure retreating on a cable-stayed bridge under complex conditions for bridge construction.

[0030] In the figure:

[0031] 1. Main truss;

[0032] 2. Main beam; 201. Groove;

[0033] 3. Secondary beam; 301. Protrusion;

[0034] 4. Track beam;

[0035] 5. Auxiliary track;

[0036] 6. Wheel frame;

[0037] 7. Pushing device;

[0038] 8. Putting;

[0039] 9. Mechanical gripper;

[0040] 10. Wheels;

[0041] 11. Push rod for limit position;

[0042] 12. Beam limit bolts;

[0043] 13. Steel sling;

[0044] 14. Side formwork;

[0045] 15. Bottom template;

[0046] 16. Main track;

[0047] 17. Bottom walking passage;

[0048] 18. Strengthen the ribs;

[0049] A. Stay cable; B. Closing point; C. Bridge deck; D. Highway. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0051] Example 1

[0052] This embodiment provides a hanging basket structure for bridge construction under complex conditions, including: a main truss 1, a main truss traveling mechanism and a secondary crossbeam traveling mechanism;

[0053] like Figures 1 to 3As shown, the main truss 1 includes a crossbeam, and the crossbeam includes a main crossbeam 2 and secondary crossbeams 3 arranged at both ends of the main crossbeam 2, and the main crossbeam 2 and the secondary crossbeam 3 are detachably connected;

[0054] The main truss walking mechanism is arranged at the bottom of the main truss 1, and the main truss walking mechanism can drive the main truss 1 to walk. The main truss walking mechanism can adopt the structure in the prior art. Except for the crossbeam part, the main truss 1 can adopt the structure in the prior art, and the specific structure will not be repeated;

[0055] The secondary crossbeam walking mechanism is located below the secondary crossbeam 3, and the secondary crossbeam walking mechanism can support the secondary crossbeam 3 separated from the main crossbeam 2, and drive the secondary crossbeam 3 separated from the main crossbeam 2 to walk;

[0056] After the main crossbeam 2 and the secondary crossbeam 3 are separated, the main crossbeam 2 can pass between the inclined cables A on both sides of the cable-stayed bridge under the drive of the main truss traveling mechanism, and the secondary crossbeam 3 can pass outside the inclined cables A on both sides of the cable-stayed bridge under the drive of the secondary crossbeam traveling mechanism;

[0057] Compared with the existing hanging basket with an integrated crossbeam structure, the present embodiment provides a hanging basket structure for bridge construction under complex conditions, which can separate the crossbeam by dividing it into a main crossbeam 2 and a secondary crossbeam 3 that can be detachably connected. At the same time, by setting a main truss walking mechanism and a secondary crossbeam walking mechanism, the separated main crossbeam 2 and secondary crossbeam 3 can be respectively retreated, so that the inclined cable A can pass through the separation point between the main crossbeam 2 and the secondary crossbeam 3, and no longer block the crossbeam, so that the hanging basket can smoothly retreat to the two ends of the bridge for disassembly, avoiding the following problems: Figures 8 to 10 The normal use of the highway D below the cable-stayed bridge shown in the figure is not affected. The back-off operation can be completed without destroying the hanging basket structure, so that the hanging basket structure can be used repeatedly, which greatly reduces the construction cost.

[0058] In a specific embodiment, Figure 6 and Figure 7 As shown, the auxiliary crossbeam walking mechanism includes a track cushion beam 4, an auxiliary rail 5, a wheel frame 6, a jacking device 7, a push rod 8 and a mechanical gripper 9;

[0059] The track cushion beam 4 is arranged as follows Figures 1 to 3 On the bridge deck C of the cable-stayed bridge shown in the figure, the auxiliary rail 5 is arranged on the track cushion beam 4, the wheel frame 6 is rotatably connected with a wheel axle, the wheel axle is mounted with a wheel 10, the pushing device 7 is mounted on the auxiliary rail 5, the pushing device 7 can push the wheel frame 6 to make the wheel 10 slide along the auxiliary rail 5, one end of the push rod 8 is fixed to the top of the wheel frame 6, and the other end of the push rod 8 is fixedly connected to a mechanical gripper 9, and the mechanical gripper 9 can clamp the auxiliary cross beam 3. In this embodiment, as shown in FIG. Figure 6As shown, after the mechanical gripper 9 clamps the secondary crossbeam 3, the end of the clamping claw can be pressed on the top surface of the secondary crossbeam 3 to prevent the secondary crossbeam 3 from falling off the mechanical gripper 9;

[0060] In this embodiment, if Figure 2 As shown, the auxiliary rail 5 is parallel to the main rail 16 of the main truss walking mechanism, ensuring that when retreating, the main truss 1 and the separated auxiliary crossbeam 3 move in the same direction without interference;

[0061] In this embodiment, the push rod 8 is an electric push rod. Figure 6 and Figure 7 As shown, a reinforcing rib 18 is welded on the top of the wheel frame 6, and the reinforcing rib 18 abuts against the outer periphery of the push rod 8 to prevent the push rod 8 from tipping over.

[0062] In a specific embodiment, Figure 6 As shown, the secondary crossbeam walking mechanism further includes a limiting push rod 11, which is tiltedly arranged on the top of the wheel frame 6. After the piston rod of the limiting push rod 11 is extended, it can abut against the clamping claw of the mechanical gripper 9 to prevent the mechanical gripper 9 from releasing the secondary crossbeam 3. The limiting push rod 11 effectively improves the reliability of the secondary crossbeam walking mechanism;

[0063] In this embodiment, the limit push rod 11 is an electric push rod. After the mechanical gripper 9 clamps the secondary crossbeam 3, the piston rod of the limit push rod 11 is extended to abut against the claws of the mechanical gripper 9, ensuring that the mechanical gripper 9 is stable and reliable in the clamped state, preventing the claws from opening accidentally, thereby avoiding the secondary crossbeam 3 from falling off and causing a safety accident.

[0064] In a specific embodiment, Figure 5 As shown, it also includes a beam limiting bolt 12, the end of the secondary beam 3 is provided with a plurality of protrusions 301, the end of the main beam 2 is provided with a plurality of grooves 201 corresponding to the protrusions 301, and bolt holes are provided on both sides of the groove 201 and the protrusions 301. When the protrusions 301 are inserted into the grooves 201, the beam limiting bolt 12 can penetrate the bolt holes provided on both sides of the groove 201 and the protrusions 301, thereby preventing the secondary beam 3 and the main beam 2 from separating, so that the secondary beam 3 and the main beam 2 are reliably connected;

[0065] In this embodiment, the beam limiting bolt 12 passes through the two sides of the groove 201 and the bolt holes provided on the protrusion 301 and is then engaged with the nut.

[0066] In a specific embodiment, a hanging basket template is also included, and the hanging basket template is connected to the secondary crossbeam 3 via a suspension structure. In this embodiment, Figure 1 and Figure 2As shown, the hanging basket formwork includes a bottom formwork 15 and a side formwork 14 , and the two side formworks 14 are respectively fixed on both sides of the bottom formwork 15 .

[0067] In a specific embodiment, Figure 3 and Figure 4 As shown, it also includes a bottom walking channel 17, which is arranged at the bottom of the hanging basket template. The bottom walking channel 17 is a three-sided surrounding structure, and the three-sided surrounding structure faces away from Fig. 9 and Fig.10 The closure B of the cable-stayed bridge shown is open on one side, and the bottom walking channel 17 provides convenience for construction workers to install the suspension structure, disassemble and maintain the template structure, etc.;

[0068] In practical applications, the bottom walking channel 17 can be an independent component directly welded and fixed on the hanging basket formwork; the bottom walking channel 17 can also be formed by welding guardrails on the periphery of the steel structure extending from the bottom formwork 15 and the side formwork 14.

[0069] In a specific embodiment, Figure 1 and Figure 3 As shown, the suspension structure includes a steel sling 13, one end of the steel sling 13 is fixed to the hanging basket formwork, and the other end of the steel sling 13 is fixed to the secondary crossbeam 3. In the present embodiment, hooks are provided at both ends of the steel sling 13, and the steel sling 13 is hung on the secondary crossbeam 3 and the steel structure of the hanging basket formwork through the hooks. A plurality of steel slings 13 are provided between the secondary crossbeam 3 and the hanging basket formwork to ensure that the hanging basket formwork can be stably connected to the secondary crossbeam 3, and move forward and backward with the secondary crossbeam 3.

[0070] Example 2

[0071] This embodiment provides a construction method of a hanging basket structure for bridge construction under complex conditions, including a hanging basket structure for bridge construction under complex conditions as described in Example 1. The construction methods for moving the hanging basket structure forward and closing the hanging basket structure are all prior art. It is only necessary to ensure that the main crossbeam 2 and the secondary crossbeam 3 are not separated during the construction process of moving the hanging basket structure forward and closing the hanging basket structure. The following will introduce a construction method for moving the hanging basket structure backward, including the following steps:

[0072] S1: After the cable-stayed bridge is closed, the auxiliary beam walking mechanism is moved to the position directly below the auxiliary beam 3. Specifically, the wheel frame 6 is pushed forward by the jacking device 7 so that the mechanical gripper 9 is located directly below the auxiliary beam;

[0073] S2: The hoisting equipment hoists the secondary crossbeam 3, and the construction personnel dismantle the connection between the main crossbeam 2 and the secondary crossbeam 3, remove the crossbeam limit bolts 12 to complete the dismantling, and then the hoisting equipment moves the secondary crossbeam 3 horizontally to separate the secondary crossbeam 3 from the main crossbeam 2;

[0074] S3: The push rod 8 of the auxiliary beam walking mechanism extends, driving the mechanical gripper 9 in the open state to rise and abut against the bottom of the auxiliary beam 3, and then the claws of the mechanical gripper 9 close to clamp the auxiliary beam 3, the main truss walking mechanism drives the main truss 1 to retreat from the middle of the cable-stayed bridge to both ends of the cable-stayed bridge, and the auxiliary beam walking mechanism drives the auxiliary beam 3 separated from the main beam 2 to retreat from the middle of the cable-stayed bridge to both ends of the cable-stayed bridge.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A hanging basket structure for bridge construction under complex conditions, characterized in that: include: A main truss (1), a main truss traveling mechanism and a secondary crossbeam traveling mechanism; The main truss (1) comprises a crossbeam, wherein the crossbeam comprises a main crossbeam (2) and secondary crossbeams (3) arranged at both ends of the main crossbeam (2), and the main crossbeam (2) and the secondary crossbeam (3) are detachably connected; The main truss walking mechanism is arranged at the bottom of the main truss (1), and the main truss walking mechanism can drive the main truss (1) to walk; The secondary crossbeam walking mechanism is located below the secondary crossbeam (3), and the secondary crossbeam walking mechanism is capable of supporting the secondary crossbeam (3) after being separated from the main crossbeam (2), and driving the secondary crossbeam (3) to walk after being separated from the main crossbeam (2); After the main crossbeam (2) and the secondary crossbeam (3) are separated, the main crossbeam (2) can pass between the inclined cables (A) on both sides of the cable-stayed bridge under the drive of the main truss walking mechanism, and the secondary crossbeam (3) can pass outside the inclined cables (A) on both sides of the cable-stayed bridge under the drive of the secondary crossbeam walking mechanism.

2. The hanging basket structure for bridge construction under complex conditions according to claim 1 is characterized in that: The auxiliary crossbeam walking mechanism comprises a track cushion beam (4), an auxiliary rail (5), a wheel frame (6), a pushing device (7), a push rod (8) and a mechanical gripper (9); The track pad beam (4) is arranged on the deck of the cable-stayed bridge, the auxiliary rail (5) is arranged on the track pad beam (4), the wheel frame (6) is equipped with a wheel (10), the pushing device (7) is installed on the auxiliary rail (5), the pushing device (7) can push the wheel frame (6) to make the wheel (10) slide along the auxiliary rail (5), one end of the push rod (8) is fixed to the top of the wheel frame (6), and the other end of the push rod (8) is fixedly connected to a mechanical gripper (9), and the mechanical gripper (9) can clamp the auxiliary cross beam (3).

3. The hanging basket structure for bridge construction under complex conditions according to claim 2 is characterized in that: The auxiliary crossbeam walking mechanism also includes a limit push rod (11), which is obliquely arranged on the top of the wheel frame (6). After the piston rod of the limit push rod (11) is extended, it can abut against the clamping claw of the mechanical gripper (9) to prevent the mechanical gripper (9) from releasing the auxiliary crossbeam (3).

4. The hanging basket structure for bridge construction under complex conditions according to claim 1 is characterized in that: It also includes a beam limiting bolt (12), the end of the secondary beam (3) is provided with a plurality of protrusions (301), the end of the main beam (2) is provided with a plurality of grooves (201) corresponding to the protrusions (301), and bolt holes are provided on both sides of the groove (201) and on the protrusions (301). When the protrusions (301) are inserted into the grooves (201), the beam limiting bolts (12) can pass through the bolt holes provided on both sides of the grooves (201) and on the protrusions (301), thereby preventing the secondary beam (3) and the main beam (2) from separating.

5. The hanging basket structure for bridge construction under complex conditions according to claim 1 is characterized in that: It also comprises a hanging basket template, wherein the hanging basket template is connected to the secondary crossbeam (3) via a suspension structure.

6. The hanging basket structure for bridge construction under complex conditions according to claim 5 is characterized in that: It also comprises a bottom walking channel (17), wherein the bottom walking channel (17) is arranged at the bottom of the hanging basket template, and the bottom walking channel (17) is a three-sided surrounding structure, and the three-sided surrounding structure is open toward a side away from the closing position of the cable-stayed bridge.

7. The hanging basket structure for bridge construction under complex conditions according to claim 5 is characterized in that: The suspension structure comprises a steel sling (13), one end of the steel sling (13) is fixed on the hanging basket template, and the other end of the steel sling (13) is fixed on the secondary crossbeam (3).

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